gomp-20050608-branch/libstdc++-v3/include/ext/pb_assoc/detail/resize_policy/size_base.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  31
  32 // Permission to use, copy, modify, sell, and distribute this software
  33 // is hereby granted without fee, provided that the above copyright
  34 // notice appears in all copies, and that both that copyright notice and
  35 // this permission notice appear in supporting documentation. None of
  36 // the above authors, nor IBM Haifa Research Laboratories, make any
  37 // representation about the suitability of this software for any
  38 // purpose. It is provided "as is" without express or implied warranty.
  39
  40 /**
  41  * @file size_base.hpp
  42  * Contains an base holding size for some resize policies.
  43  */
  44
  45 #ifndef SIZE_BASE_HPP
  46 #define SIZE_BASE_HPP
  47
  48 namespace pb_assoc
  49 {
  50
  51   namespace detail
  52   {
  53
  54     template<typename Size_Type, bool Hold_Size>
  55     class size_base;
  56
  57 #define PB_ASSOC_CLASS_T_DEC \
  58         template<typename Size_Type>
  59
  60 #define PB_ASSOC_CLASS_C_DEC \
  61         size_base< \
  62                 Size_Type, \
  63                 true>
  64
  65     template<typename Size_Type>
  66     class size_base<
  67       Size_Type,
  68       true>
  69     {
  70     protected:
  71       typedef Size_Type size_type;
  72
  73     protected:
  74       inline
  75       size_base();
  76
  77       inline void
  78       swap(PB_ASSOC_CLASS_C_DEC& r_other);
  79
  80       inline void
  81       set_size(size_type size);
  82
  83       inline size_type
  84       get_size() const;
  85
  86     private:
  87       size_type m_size;
  88     };
  89
  90     PB_ASSOC_CLASS_T_DEC
  91     PB_ASSOC_CLASS_C_DEC::
  92     size_base() :
  93       m_size(0)
  94     { }
  95
  96     PB_ASSOC_CLASS_T_DEC
  97     inline void
  98     PB_ASSOC_CLASS_C_DEC::
  99     set_size(size_type size)
 100     {
 101       m_size = size;
 102     }
 103
 104     PB_ASSOC_CLASS_T_DEC
 105     inline typename PB_ASSOC_CLASS_C_DEC::size_type
 106     PB_ASSOC_CLASS_C_DEC::
 107     get_size() const
 108     {
 109       return (m_size);
 110     }
 111
 112     PB_ASSOC_CLASS_T_DEC
 113     inline void
 114     PB_ASSOC_CLASS_C_DEC::
 115     swap(PB_ASSOC_CLASS_C_DEC& r_other)
 116     {
 117       std::swap(m_size, r_other.m_size);
 118     }
 119
 120 #undef PB_ASSOC_CLASS_T_DEC
 121
 122 #undef PB_ASSOC_CLASS_C_DEC
 123
 124 #define PB_ASSOC_CLASS_T_DEC \
 125         template<typename Size_Type>
 126
 127 #define PB_ASSOC_CLASS_C_DEC \
 128         size_base< \
 129                 Size_Type, \
 130                 false>
 131
 132     template<typename Size_Type>
 133     class size_base<
 134       Size_Type,
 135       false>
 136     {
 137     protected:
 138       typedef Size_Type size_type;
 139
 140     protected:
 141       inline void
 142       swap(PB_ASSOC_CLASS_C_DEC& r_other);
 143
 144       inline void
 145       set_size(size_type size);
 146     };
 147
 148     PB_ASSOC_CLASS_T_DEC
 149     inline void
 150     PB_ASSOC_CLASS_C_DEC::
 151     swap(PB_ASSOC_CLASS_C_DEC& /*r_other*/)
 152     { }
 153
 154     PB_ASSOC_CLASS_T_DEC
 155     inline void
 156     PB_ASSOC_CLASS_C_DEC::
 157     set_size(size_type /*size*/)
 158     {
 159       // Do nothing
 160     }
 161
 162 #undef PB_ASSOC_CLASS_T_DEC
 163
 164 #undef PB_ASSOC_CLASS_C_DEC
 165
 166   } // namespace detail
 167
 168 } // namespace pb_assoc
 169
 170 #endif // #ifndef SIZE_BASE_HPP